baber/WOPTO huggingface dataset:
Patent GB-1214465-A (GB)
Title: Improvements relating to electrical rectifying arrangements
Inventor: SCOLES GRAHAM JOHN
IPC: H02M7/162
Filed: 1967-07-12
Abstract: 1,214,465. Electrical converter systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 9 July, 1968 [12 July, 1967], No. 32020/67. Heading H2F. In a modification of a rectifier arrangement described in Specification 1,130,082, to obtain good regulation of the rectifier voltage output with load, the rectifier is fed via a series resonant circuit and a thyristor switches) (or alternatively discharge tubes or mechanical switches) controlled to connect the supply source (which may be A.C. or D.C.), periodically at a frequency less than the resonant frequency of the series LC circuit. In a voltage multiplier embodiment fed from a sinusoidal A.C. supply (Fig. 8) the thyristors T1, T2 conduct alternately for periods during which there is small variation in voltage amplitude of the supply, e.g. for a period between 18 degrees before and 18 degrees after the peak of each sine wave to approach as close as possible to a square wave input. The LC circuits are tuned to five times the supply frequency and since, for instance, L1C1 is substantially loss free, current to the diode bridge rectifier D1 will charge a reservoir capacitor CL1. When the supply voltage reverses the capacitor CL1 voltage will initially augment the supply voltage and finally oppose it. These initial and final voltages will be equal and opposite so that the output voltage across CL1 will not be affected and good regulation is obtained. Likewise bridge D2 is fed via series resonant circuits L2, C2, L3, C3 and similarly diode bridges D3, D4. Since the reservoir capacitors CL are in series their voltages are additive. In an embodiment, Fig. I (not shown), bridges D2, D3, D4 are omitted, while Figs. 4 and 10 (not shown) illustrate arrangements with three-phase input. In addition split bridge multipliers are described, Figs. 2, 6, 9 (not shown). In a D.C. input embodiment (Fig. 5) thyristors T1, T2 are triggered simultaneously for current flow in one direction while T3, T4 are both triggered for current flow in the other direction. The conduction period for each pair is at least as long as a half-cycle of the resonant circuit tuned frequency. In an embodiment, Fig. 7, thyristor T1 first conducts to feed the rectifier, then T2 is made conductive to short circuit the rectifier and restore the LC circuit to its initial condition. The thyristors may be turned off by auxiliary thyristors and quenching capacitors, in a known manner.
Patent GB-1399839-A (GB)
Title: Pressure-sensitive copying material
IPC: B41M5/136
Filed: 1971-07-08
Abstract: 1399839 Pressure-sensitive record sheets CLAYTON ANILINE CO LTD 30 June 1972 [8 July 1971] 32136/71 Heading D2B Pressure-sensitive copying material comprises a pair of sheets, a solid electron acceptor, and a dissolved colour former of formula  wherein each of R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP>, which may be the same or different, denotes a hydrogen atom, a halogen atom or alkyl, alkoxy, aryloxy, alkoxycarbonyl, N, N-dialkylcarbamoyl, acylamino or N-acyl N-alkylamino group, or a group of the formula -SO 2 NY<SP>1</SP>Y<SP>2</SP> in which each of Y<SP>1</SP> and Y<SP>2</SP>, which may be the same or different, denotes an alkyl or aryl group, or Y<SP>1</SP> and Y<SP>2</SP> together denote an alkylene group; X<SP>1</SP> denotes a hydrogen atom or an alkyl group; X<SP>2</SP> denotes an alkyl, cyanoalkyl, or an arylmethylene group; or X<SP>1</SP> and X<SP>2</SP> together denote an alkylene group; and X<SP>3</SP> denotes an alkyl or aryl group, the arrangement being such that on application of imaging pressure to the copying material, the colour former and electron acceptor are brought into contact to form a coloured image. The colour former may be microencapsulated, and may be used in combination with conventional colour formers such as Crystal Violet lactone and Benzoyl leuco Methylene Blue. The electron acceptor may be attapulgus clay or an acidic phenolic resin. The colour former and electron acceptor may be located in or on the same or separate sheets.
Patent GB-649632-A (GB)
Title: Improvements in or relating to protective attachments for cricket batting gloves
IPC: A63B71/14
Filed: 1948-12-14
Abstract: 649,632. Gloves. STOKES, R. T. Dec. 14, 1948, No. 32267. [Class 141] In a cricket batting glove of the type having rubber strips with projecting spaced rows of pips on one face attached to the back, these strips are secured by machine stitching which is between the outer longitudinal rows of pips and an inner row or rows of pips. As shown, a right-hand glove has the strips 5 secured to the back of the thumb 8 and fingers 9 by machine stitching 7. The glove has an elastic wristband 10. The corresponding left-hand glove has rubber strips at the back of the fingers not extending to the tips but extending well into the back of the hand, which is also provided with a transverse strip. A construction is also described wherein the glove comprises a shield attached to the back of the hand by means of finger and thumb loops together with an elastic wrist strap. A further construction comprises a separate thumb sheath secured by means of an elastic strap to the hand portion consisting of a back portion and. finger sheaths. Specification 632,894 is referred to.
Patent GB-399664-A (GB)
Title: Improvements in tramway and railway overhead conductor supports
IPC: B60M1/24
Filed: 1932-11-16
Abstract: 399,664. Suspending conductors. PEACE, Ltd., H., Lloyd St. Works, Wednesbury, and BRABNER, K. G., Waysend, Wells Road, Penn, Wolverhampton, both in Staffordshire. Nov. 16, 1932, No. 32347. [Class 36.] An overhead electric conductor c is provided with a protecting metal sleeve e under the supporting ears d to prevent wear by arcing. In another form, Fig. 3, the extended sides s of the ears form the protecting sheath.
Patent GB-223091-A (GB)
Title: Improvements in plant for handling coal and ashes in boiler houses
IPC: F23J1/00
Filed: 1923-12-28
Abstract: 223,091. Underfeed Stoker Co., Ltd., and Robey, E. W. Dec. 28, 1923. Ashes, removing; fuel, feeding. - In boiler houses a single conveyer distributes the coal to the bunkers and conveys away the ashes discharged from the furnaces. Coal delivered into the upper trough m, Fig. 1, by an elevator p is discharged through bottom apertures into bunkers c for feeding the travelling grates d, Fig. 2, by which the boilers b are fired. The lower trough e which contains water and receives the ashes &c. is not in the same vertical plane as the upper and in consequence either the flanges i on which run the conveyer chains l are inclined, Figs. 4 and 5, or each scraper s, Fig. 7, is attached to the adjacent ends of consecutive links w by pivot pins u arranged at right angles to each other. A number of ears x at the edge of the scraper are arranged so that two of them are in contact with the trough at any time. The driving sprockets comprise two parallel discs y, Fig. 8, having pieces z between them to engage the face of each scraper.
Patent GB-191251-A (GB)
Title: Improvements in chimney or flue caps for separating and collecting dirt from smoke or gases
IPC: F23J15/02
Filed: 1921-12-03
Abstract: 191,251. Parker, A. Dec. 3, 1921. Chimney tops.-A chimney cap, of the kind including a funnel-shaped member for collecting the dirt, comprises a conical body a<2>, enlarging upwardly, within which is secured the funnelshaped collector e fitted with a discharge pipe f leading outside the chimney c, the space between the parts a<2>, e, being of such size that the gases in their upward travel are maintained at a uniform pressure or rate of flow. The upper end of the body part a<2> is turned inwardly at a' and has attached thereto a downwardly tapering member a<4>, this arrangement providing a space g in which the gases expand. The outlet d is partially closed by a centrally arranged baffle h, and a protecting cover i is provided of the same diameter as the widest part of the cap. The funnel c may be supplied with water through tangentially disposed pipes x. In a modification, the baffle h is replaced by a series of louvre rings or by a spirally arranged band.
Patent GB-967175-A (GB)
Title: Improvements in and relating to starting and running an asynchronous motor from an inverter
Inventor: JONES DAVID ARTHUR
IPC: H02P1/30
Filed: 1960-09-22
Abstract: 967,175. Control of A.C. motors. BRUSH ELECTRICAL ENGINEERING CO. Ltd. Sept. 22, 1961 [Sept. 22, 1960], No. 32535/60. Drawings to Specification. Heading H2J. An asynchronous motor is started and run from an inverter through a synchronous machine whose armature winding acts as an autotransformer for reducing at the inverter the starting current taken by the motor. The synchronous machine is driven by a pony motor to assist the starting of the inverter commutation, and the machine has automatic field control to allow the inverter the necessary angle for commutation. The frequency of the inverter is subjected to external control to enable the motor speed to be varied. The inverter may be of the mercury arc or the solid state semi-conductor types, and the motor may be of the polyphase or single-phase types.
Patent GB-1090609-A (GB)
Title: Substituted phenyl-acetonitriles
IPC: C07D317/60
Filed: 1966-07-20
Abstract: The invention comprises compounds of the formula <FORM:1090609/C2/1> where R is an alkyl or alkenyl radical having 1 to 5 carbon atoms; R1 is an alkyl radical having 1 to 5 carbon atoms, a saturated or unsaturated, cyclic or bicyclic hydrocarbon radical, the benzyl or phenyl radical or the group <FORM:1090609/C2/2> where X is zero or one, and A, B, C, A1, B1, C1, A11, B11 and C11 represent hydrogen or halogen atoms, alkoxy or alkyl radicals having 1 to 3 carbon atoms, or wherein at least two of the adjacent substituents A to C1, A1 to C1 and A11 to C11 together form a methylene dioxy group with the proviso that at least one of these substituents A to C11 is the trifluoromethyl radical, and n is an integer from 2 to 4 and m is an integer from 1 to 3 with the further proviso that the trifluoromethyl radical is linked at a position other than the ortho position.  The novel compounds may be made by reacting an appropriate phenyl acetonitrile (A)(B)(C)Ph.CH(R1)CN with <FORM:1090609/C2/3> where X is a reactive acid residue, preferably a halogen, in the presence of a basic condensation agent; by reacting a compound of same formula as the desired product but where R1 is hydrogen with a compound R1-X; by condensing (A)(B)(C)Ph.CH2CN with R1-X and with <FORM:1090609/C2/4> in any order; by reacting (A)(B)(C)Ph.C(R1)(CN).(CH2)n.X with HN(R)(CH2)m.Ph(A1(B1)(C1) or with H2N(CH2)mPh(A1(B1(C1) followed by alkylation to introduce R. The preparation of the following starting material is also described: a -isopropyl-3-trifluoromethyl phenyl acetonitrile from 3-trifluoromethylphenyl acetonitrile and isopropyl bromide; a  - [(N - methyl - N - homoveratryl) - g -aminopropyl] - 3 - trifluoromethyl phenyl acetonitrile from 3-trifluoromethyl phenylacetonitrile and N-methyl-N-homoveratryl amino - g  - chloropropane; a  - isopropyl - a  - (31-chloropropyl) - 3 - trifluoromethyl phenyl acetonitrile from 1-chloro-3-bromopropane or 1,3-dichloropropane with a -isopropyl-3-trifluoromethyl phenylacetonitrile.  Pharmaceutical compositions comprise the compouds of Formula I and an inert carrier. The compositions may be used for the treatment of coronary disturbances and for combating bacterial protozoal, viral, helmintic or fungal pathogens.  They may be administered orally in the form of tablets, pills, powders, capsules, solutions, emulsions, suspensions or dispersions; by intravenous or intramuscular injection or by rectal application in the form of suppositories.
Patent GB-480131-A (GB)
Title: Improvements in rubber overshoes and the method of moulding the same
IPC: B29C35/00
Filed: 1936-11-27
Abstract: 480,131. Moulding rubber overshoes. MALM, H. Nov. 27, 1936, No. 32590. Convention date, Dec. 21, 1935. [Class 87 (ii)] [Also in Group VII] An overshoe of flexible extensible rubber is moulded in one piece in a mould comprising a lower part 5, an upper part 6, and a core 7. Dowel pins 8 and 11 ensure that the core and the upper and lower parts of the mould are correctly aligned. The pins 11 are preferably attached to the core 7 and enter apertures 12 in the part 5, which open through the lower surface 13 of the part 5 to facilitate the insertion of other pins to eject the core after the moulding operation. The overshoe is moulded from sheets or particles of rubber and the mould may be heated in any desired manner. The overshoe is also moulded in a curved form as shown, to ensure that the side walls are shorter in length than the bottom of the shoe so that in use these walls will be stretched and will fit snugly against the sides of the underlying shoe. The parting line between the two parts of the mould is arranged as at 21, Fig. 1, so that the flare which is formed on the overshoe and is subsequently trimmed off, is in an inconspicuous position on the edges of the sole and heel portions.
Patent GB-283336-A (GB)
Title: Improvement in revolving cylinder engine
IPC: F02B75/26
Filed: 1926-12-29
Abstract: 283,336. Macomber, W. G. Dec. 29, 1926. Force-feed and centrifugal action lubricating.- In a revolving-cylinder internal combustion engine with the cylinder axes parallel to the axis of rotation, a swash-plate 23 is used and caused to rotate synchronously with the cylinders by teeth 29 on the plate gearing with teeth 30 on a cylinder carrier 12. The connecting-rods have universal joints 18, 19 with the pistons and swash-plates. Oil supplied by a pump 97 in an extension 394 of the main casing flows through a pipe 72 in the hollow fixed shaft 73 to passages 70; it is forced by centrifugal action through passages 88 in the swash plate, passages 89 in the connecting rods, and passages in the universal joints to all the cylinders, pistons and driving-gear requiring lubrication. It is flung on the inside of the cylinder carrier and is collected by a stationary scoop 77, whence it is conducted through a bore 78 in the end of the shaft 73, a tube 71 surrounding the feed pipe 72, and a pipe 395 back to the extension 394.
Patent GB-191577-A (GB)
Title: Anti-splash device for the wheels of road vehicles
IPC: B62D25/18
Filed: 1921-12-08
Abstract: 191,577. Henderson, J., and Hilson, J. Dec. 8, 1921. Lateral-splash guards, particularly for motor vehicles, comprise a flexible part, such as a brush A, supported dependingly and directly by a spring or springs D, E, adjusted by screws F, G, from a cross-piece C, which is pivoted on a bracket C' carried by ball bearings on the hub of the vehicle wheel.
Patent GB-675782-A (GB)
Title: Improvements in or relating to pumping installations
IPC: F04D13/12
Filed: 1949-12-25
Abstract: 675,782. Centrifugal pumps. DRYSDALE & CO., Ltd., and CARSLAW, C. H. Dec. 21, 1950 [Dec. 25, 1949], No. 33059/49. Class 110(i) [Also in Group XXXV] A pumping installation comprises a housing containing the rotors and stators of at least two electric motors, the rotor shafts being each extended at both ends through bearings supported by the housing, at least one end of each shaft being coupled to a pump. In a marine distiller, a housing 1 encloses the rotors and stators of three electric motors and is formed with cooling water passages having water connections 2. An air pump 3 and a fresh water pump 4 are connected to opposite ends of one motor, and a circulating water pump 5 and a brine pump 6 are connected to opposite ends of a second motor. A coil drain pump 7 is connected to one end of a third motor, which is situated above the two other motors. The spare shaft 8 at the other end of the third motor is available for connecting to a starch injection pump or other apparatus. The motor shafts may be vertical.
Patent GB-1279093-A (GB)
Title: Dearsenication of phosphate rock
Inventor: SMITH RAYMOND ANTHONY
IPC: C01B25/01
Filed: 1968-07-11
Abstract: 1279093 Low-As phosphorus; treating phosphate rock ALBRIGHT & WILSON Ltd 7 July 1969 [11 July 1968] 33065/68 Heading C1A Phosphorus is produced from phosphate rock by the addition to the rock of phosphoric acid such that the CaO : P 2 O 5  ratio is less than 3 : 1 (and yet insufficient to cause the rock to fuse on calcination), calcining the resultant mixture at 1000 to 1300 C. and subsequently extracting phosphorus by an electrothermal process. The phosphorus so produced has a reduced arsenic content and is suitable for the production of phosphorus compounds for incorporation into foods. A rotary, fluidized bed, or static calciner may be used.
Patent GB-660607-A (GB)
Title: Power indicating apparatus for internal combustion engines provided with governor
IPC: G01F9/00
Filed: 1948-12-22
Abstract: 660,607. Speed governors. TIVOLLIER, J. B. Dec. 22, 1948 [Nov. 8, 1948], No. 33066/48. Drawings to Specification. Class 57 [Also in Groups XIX and XXVIII] Apparatus for indicating the power output of a governor controlled internal combustion engine comprises a dial indicator (see Group XIX) having its plunger actuated by a rod, controlled by the governor, which regulates the fuel supply, the movements of the plunger being transmitted to the indicator needle by link and lever mechanism and toothed gearing which is adjustable so that the apparatus can be adapted for any particular engine. The governor regulates the rack of a fuel injection pump.
Patent GB-646299-A (GB)
Title: Improvements in or relating to electric lighting fittings
IPC: H01R33/08
Filed: 1947-12-16
Abstract: 646,299. Fluorescent lighting fittings. GENERAL ELECTRIC CO., Ltd., and HUBBOLD. S. Dec. 16, 1947, No. 33138. [Class 75(iv)] A fluorescent lighting fitting comprises a pair of box-like end members 3 connected together by either a conduit 2 carrying supply leads or a channel member 26 carrying control gear 29, each end member housing a lamp socket 5 and having a bottom cover 4 spring-urged to the closed position and arranged to pass over a deadcentre position to its open position. As shown the respective inner faces 8, 9 of the cover 4 and end member 3 are shaped to provide a hole for a lamp 10 which is held by a spring clip 22 fixed to a projection 24 on the inside of the face 9. The cover 4 has a locating lip 14 at its outer edge fitting inside the outer end face 15 of the member 3 and is urged to its closed position by a spring 19 fixed at one end to the member 3 and at the other end to the centre of a W-shaped member 16, the free ends of which engage projections 32 on the cover 4 and the bottoms of which are housed in slots 17 formed in projections 18 on the member 3. The inner face 9 of each box-like member 3 is apertured to receive either the end of the conduit 2 or, if a channel member 26 is fitted, a spigot 25 fixed to the end of said channel member, the conduit end or spigot being locked in position by a grub screw 27. A starter switch 21 may be housed in each end member 3 and tapped holes may be provided in the side faces of said members 3 for securing side screens or reflectors.
Patent GB-412845-A (GB)
Title: Improvements in or relating to the underframes of vehicles
IPC: B60G11/14
Filed: 1933-11-27
Abstract: 412,845. Steering motor vehicles. WOOLER, J., Willow Bungalow, West End Lane, Ruislip, Middlesex, and MURPHY, W. J. BALFOUR-, 42, Langley Park Road, Sutton, Surrey. Nov. 27, 1933, No. 33148. [Class 79 (v).] The stub axle 12 of an independently-sprung steering wheel is secured to a member 15 connected by plungers 11 and springs 18, 19 to brackets 16, 17 pivoted to the underframe by bearings 29, 28. The upper bearing contains a vertical shaft 30 adapted to be operated by worm or other gearing from the steering mechanism. Passages 34, 35 facilitate lubrication.
Patent GB-439674-A (GB)
Title: A process for improving mineral lubricating oils
IPC: C10G21/16
Filed: 1934-04-03
Abstract: Mineral lubricating-oils are improved as regards the temperature-viscosity curve by treatment with a selective solvent consisting of methanol mixed with other solvents having a greater solvent power for aromatic and naphthenic hydrocarbons as described in Specification 439,621, but excluding sulphur dioxide. Lubricating oil is agitated with a mixture containing equal parts of methanol and phenol or nitrobenzene at 20 to 100 DEG  C., and allowed to separate into layers.  The upper layer is drawn off and freed from solvent by distillation leaving a lubricating oil of high viscosity index.  The oil and solvent may be passed in countercurrent.  The resulting oil may be freed from wax to improve the setting point or substances added for this purpose. Agents preventing resinification or ageing may be added together with dyestuffs, agents increasing the viscosity such as polymerized isobutylene, or substances producing fluorescence. Specification 369,737 also is referred to.
Patent GB-692853-A (GB)
Title: Improvements in or relating to circuit arrangements for addition of binary numbers
Inventor: WILLIAMS FREDERIC CALLAND
IPC: G06F7/504
Filed: 1948-12-23
Abstract: 692,853. Digital electric calculating-apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Dec. 10, 1949 [Dec. 23, 1948], No. 33191/48. Class 106 (i). An electrical circuit for adding two binary numbers, each represented by a train of digit signals (e.g. a pulse for " 1 " and no pulse for " 0 ") receives simultaneously signals representing corresponding digits A and B in the two numbers in comparison means which controls an electronic switch, so that it is set into a "carry" condition if A=B=1 and into a " no carry " condition if A=B=0 and selects a respective output circuit from the comparison means, these output circuits being fed with " 1 signals if A#B=0 or 1 respectively. The selected output circuit thus gives the signal for the answer digit (A+B). As shown in Fig. 2, trains of negative-going A and B pulses are fed to a circuit 3, which sends out a pulse when it receives two simultaneously (i.e. when A=B=I), and a circuit 2 which sends out a pulse if it receives none during a digit period (i.e. if A=B=O). The outputs of circuits 2 and 3 are sent through a buffer circuit 5 directly to a gate 7 and through a " negator " 6 to a gate 8, the gates thus receiving pulses if A#B=0 or 1 respectively. The outputs are also fed to separate inputs of a " carry " trigger circuit 4 so as to set it into one or the other of its two stable conditions to open gate 8 or 7. The trigger is set by the trailing edge of the input pulse so that the gates are selected to send an answer pulse through to the buffer circuit 9 according to the condition of the trigger at the end of the previous digit period. Fig. 3 shows a circuit 3 in which the pulses are applied to the anodes of diodes D13, D23 in the grid circuit of a cathodefollower pentode V13. If simultaneous pulses are received, the pentode is cut off and a negative output pulse is produced. The circuit 2 may comprise a pentode V14, Fig. 4, having continuously recurring positive " dash " pulses applied to its suppressor grid to produce negative output pulses at its anode, from a level of 70 volts due to a diode D14. If, however, an A or B pulse is applied to a resistance R24 or R34 in the control gird circuit, the pentode is cut off and the output pulses will not be produced. As shown in Fig. 7, the circuit 4 comprises a trigger pair of crossconnected pentodes V17, V27. An output pulse from circuit 2, for example, is differentiated by a circuit C17, R37 so that its trailing edge causes a positive pulse to be sent via diode D17 to the control grid of valve V17 to render it conducting and lowering the potential at point x relative to that at point y. This lowers the potential at the anode of a diode in the gate circuit 8, similar to the circuit 3, Fig. 3, so that any pulses from the " negator " 6, applied to the second diode, will produce an output pulse. Diagrams of the other circuit components of Fig. 2 accompany the Specification. Specification 683,882 is referred to.